{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Indeed , these endeavors have been facilitated by recombinant DNA technologies , structure determinations and parallel studies in related proteins in the alpha / beta - hydrolase fold family ."}
{"Chemical": []}